If you had side skirts attached to the tow vehicle that went all the way to the sides of the trailer, then had them on spring hinges that allowed them to swing out for turns even to the point of jack knife, then just return to their neutral.
What you don't want to run 60 sheet metal screws into the side of your SRT so you can hang a 4'x4' aluminum panel on each side?
I also wonder what the turning limit on the old GMC aero truck was? This was the coolest thing ever.